WO2024017217A1 - Mécanisme de fermeture et agrafeuse - Google Patents

Mécanisme de fermeture et agrafeuse Download PDF

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Publication number
WO2024017217A1
WO2024017217A1 PCT/CN2023/107782 CN2023107782W WO2024017217A1 WO 2024017217 A1 WO2024017217 A1 WO 2024017217A1 CN 2023107782 W CN2023107782 W CN 2023107782W WO 2024017217 A1 WO2024017217 A1 WO 2024017217A1
Authority
WO
WIPO (PCT)
Prior art keywords
moving part
moving
closing mechanism
stapler
trigger
Prior art date
Application number
PCT/CN2023/107782
Other languages
English (en)
Chinese (zh)
Inventor
丁水澄
Original Assignee
天臣国际医疗科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202210840840.3A external-priority patent/CN117442274A/zh
Priority claimed from CN202221849378.5U external-priority patent/CN217827969U/zh
Application filed by 天臣国际医疗科技股份有限公司 filed Critical 天臣国际医疗科技股份有限公司
Publication of WO2024017217A1 publication Critical patent/WO2024017217A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously

Definitions

  • the present disclosure relates to the field of medical devices, and in particular, to a closing mechanism suitable for a stapler and a stapler having the closing mechanism.
  • the stapler is a device used clinically to replace traditional manual suturing. Compared with traditional manual suturing, staplers can increase the speed of tissue suturing and reduce trauma to patients.
  • a stapler includes a tool assembly including a pair of clamps. During the surgery, the doctor needs to operate the stapler to cause a pair of clamps to close to hold the tissue between the pair of clamps. This operation process is more laborious.
  • the present disclosure provides a relatively labor-saving closing mechanism and a stapler having the closing mechanism.
  • the present disclosure provides a closure mechanism suitable for use with a stapler.
  • the closing mechanism includes: a first moving part, a first end of which is pivotably supported around a first axis; a second moving part, a first end of which is pivotally connected to the second end of the first moving part; a third moving part , its first end is pivotally connected to the second end of the second moving part, and its second end is pivotably supported around the second axis; and the linkage part is slidable in the axial direction and abuts against the third moving part, As the first moving part rotates from the first position to the second position along the first axis along the first direction, the third moving part rotates around the second axis from the third position to the fourth position along the first direction and pushes the linkage member along the The axial movement is proximal, causing the tool assembly of the stapler to switch from open to closed.
  • the closing mechanism when the first moving part is in the second position, it is substantially collinear with the second moving part, wherein the closing mechanism further includes a force applying part, and the force applying part exerts on the third moving part causing the third moving part to The force used by a moving part to return from the fourth position to the third position.
  • the closing mechanism further includes a force applying member, and the force applying member A force is applied to the third moving part to cause the third moving part to return to the third position from the fourth position.
  • the force applying member applies force to the linkage member distally along the axial direction.
  • the force-applying member is an elastic member located on the distal side of the linkage member and pressing the linkage member.
  • one of the first moving part and the second moving part is provided with a rotation stop part, wherein after the first moving part rotates to the second position, the rotation stop part abuts the first moving part and the second moving part.
  • the other of the second moving parts restricts the first moving part from continuing to rotate in the first direction.
  • one of the second moving part and the third moving part is provided with a rotation stop part, wherein after the first moving part rotates to the second position, the rotation stop part abuts against the second moving part and the third moving part.
  • the other of the third moving parts restricts the first moving part from continuing to rotate in the first direction.
  • the closing mechanism further includes an operating member, which is operated to cause the first moving member to rotate in a second direction opposite to the first direction to leave the second position.
  • the stapler further includes an actuating member that can move axially distally to cause the tool assembly to fire, and one of the first moving member and the second moving member is provided with an extension.
  • the extension part when the first moving part is in the second position, the extension part is at least partially located on the path of the actuating part moving proximally along the axial direction; as the actuating part moves proximally along the axial direction, the actuating part pushes to extend part, thereby causing the first moving member to rotate in a second direction opposite to the first direction to leave the second position.
  • the third moving part when the third moving part is located at the third position, its first end is located distal to its second end; when the third moving part is located at the fourth position, its first end is located at its second end. near side of the end.
  • the closing mechanism further includes a trigger, and the trigger can be rotated under operation to cause the first moving part to rotate from the first position to the second position.
  • the stapler includes a housing defining a guide rail
  • the closing mechanism further includes a driving member, wherein a first end of the driving member is pivotally connected to the trigger and a second end of the driving member is configured to be guided by the guide rail, so that along with The trigger rotates in the first direction, and the second end of the driving member pushes the first moving member to rotate the first moving member from the first position to the second position.
  • the stapler includes a housing defining a guide rail
  • the closing mechanism further includes a driving member, wherein a first end of the driving member is configured to be guided by the guide rail and a second end is pivotally connected to the first moving member, so that along with The trigger rotates in the first direction, and the trigger pushes the first end of the driving member so that the driving member drives the first moving member to rotate from the first position to the second position.
  • the present disclosure also provides a stapler, which includes the closing mechanism provided by the present disclosure.
  • the present disclosure also provides a tissue suturing method, which method includes: providing the stapler provided in the above aspect of the disclosure; and using the stapler to perform tissue suturing.
  • the closing mechanism can convert the rotation of the first moving part into the distal sliding of the linkage part in the axial direction, thereby causing the tool assembly to switch from opening to closing.
  • the stapler using this closing mechanism has a relatively simple structure and relatively high reliability.
  • the third moving part can function as a lever.
  • the first end of the third moving part can be regarded as the power point
  • the second end of the third moving part can be regarded as the fulcrum
  • the position of the third moving part in contact with the linkage element can be regarded as the resistance point.
  • Figure 1 is a schematic structural diagram of a stapler according to Embodiment 1 of the present disclosure.
  • FIGS. 2A to 2C are structural schematic diagrams showing the internal structure of the stapler according to Embodiment 1 of the present disclosure, in which the stapler is in different states in FIGS. 2A to 2C .
  • FIG. 3 is a schematic structural diagram showing the first moving part and the second moving part according to Embodiment 1 of the present disclosure.
  • 4A and 4B are structural schematic diagrams illustrating a process of causing the first moving part to leave the second position according to Embodiment 1 of the present disclosure.
  • Figure 5 is an exploded schematic view of a part of the stapler according to Embodiment 1 of the present disclosure.
  • FIGS. 6A and 6B are schematic structural diagrams of a tool assembly according to Embodiment 1 of the present disclosure, in which the tool assembly is in different states in FIGS. 6A and 6B.
  • FIGS. 7A to 7C are structural schematic diagrams illustrating a process of causing the first moving part to leave the fourth position according to Embodiment 2 of the present disclosure.
  • Embodiment 1 of the present disclosure provides a stapler 10 .
  • the stapler 10 may be an endoscopic stapler.
  • the stapler 10 may be an endoscopic linear cutting stapler. It is understood that in other embodiments, the stapler according to the present disclosure may also be of other types.
  • stapler 10 includes tool assembly 11 and platform assembly 12 .
  • platform assembly 12 may include elongated body 13 .
  • the elongated body 13 may be tubular.
  • the elongated body 13 may extend distally from the body portion of the platform assembly 12 .
  • Tool assembly 11 may be attached to the distal end of elongate body 13 .
  • distal may refer to an end of the stapler that is far away from the doctor (or surgical robot).
  • proximal may refer to the end of the stapler that is close to the surgeon (or surgical robot).
  • Tool assembly 11 includes a pair of clamps 111,112.
  • the tool assembly 11 can be switched between open and closed.
  • a pair of clamps 111, 112 can clamp tissue therebetween.
  • a pair of jaws 111, 112 separate from each other to release tissue.
  • tool assembly 11 is in an open position.
  • clamp 111 may include an anvil and clamp 112 may include a staple cartridge for storing staples.
  • the tool assembly 11 can be caused to fire.
  • the staples are ejected from the staple cartridge to achieve tissue suturing.
  • the tool assembly 11 may also include a cutter. When the tool assembly 11 is fired, the cutter extends and the staples are ejected, thereby simultaneously cutting and suturing the tissue.
  • platform assembly 12 includes a closing mechanism.
  • the closing mechanism includes a first moving part 14 , a second moving part 15 , a third moving part 16 and a linkage part 17 .
  • the first end of the first moving part 14 is pivotably supported around the first axis a1, and the second end of the first moving part 14 is pivotally connected to the first end of the second moving part 15.
  • the second end of the second moving part 15 is pivotally connected to the first end of the third moving part 16 .
  • the second section of the third moving part 16 is pivotably supported about the second axis a2.
  • the linkage member 17 is slidable in the axial direction and abuts against the third moving member 16 .
  • the first axis a1 may be parallel to the second axis a2.
  • the axial direction may refer to the length direction of the stapler 10 , or the axial direction may refer to the extension direction of the elongated body 13 .
  • the linkage member 17 is slidably sleeved on the elongated body 13 so as to be slidable in the axial direction.
  • the third moving part 16 rotates along the first direction around the second axis a2 Rotate from the third position in Figure 2A to the fourth position in Figures 2B and 2C.
  • the third moving member 16 pushes the linkage member 17 to move proximally along the axial direction from the initial position in Figure 2A to the end position in Figures 2B and 2C, thereby causing the tool assembly 11 to switch from opening to closure.
  • the first direction may be a clockwise direction when viewed from the view direction of FIGS. 2A to 2C .
  • the closing mechanism can convert the rotation of the first moving part into the axial distal sliding of the linkage part, thereby causing the tool assembly to switch from opening to closing.
  • the stapler using this closing mechanism has a relatively simple structure and relatively high reliability.
  • the third moving part can function as a lever.
  • the first end of the third moving element can be regarded as the power point
  • the second end of the third moving element can be regarded as the fulcrum
  • the position of the third moving element in contact with the linkage element can be regarded as the resistance point.
  • the closing mechanism also includes a force applying member 18 .
  • the force applying member 18 is used to apply a force on the third moving member 16 to cause the third moving member 16 to return to the third position from the fourth position.
  • the force applying member 18 may force the linkage member 17 axially distally.
  • the linkage member 17 moves distally in the axial direction under the action of the force applying member 18, the linkage member 17 pushes the third moving member 16, thereby causing the third moving member 16 to move along the second axis a2 in the direction opposite to the first direction.
  • the second direction returns from the third position.
  • the force applying member 18 may be an elastic member 18 , which may be located on the linkage member 17 the proximal side and presses the linkage member 17, thereby exerting force on the linkage member 17 in the axial direction distally.
  • the elastic member 18 can be a compression spring, which can be sleeved on the elongated body 13 .
  • the force-applying member may also be implemented as a torsion spring.
  • connection line is substantially co-linear with the connection line from the first end to the second end of the second moving member 15 .
  • the first moving part when the first moving part is located at the second position, it is substantially collinear with the second moving part, so that the third moving part will not return to the third position from the fourth position under the action of the force applying part. Location. In this way, when the third movement moves from the third position to the fourth position, the third moving part will be maintained at the fourth position, so that the linkage part will be maintained at the end position, and the tool assembly will be maintained in the closed state.
  • the first moving part when the first moving part is located at the second position, the first moving part is located at a position reached by passing a collinear position with the second moving part. . That is to say, as the first moving part moves from the first position to the second position, the first moving part passes through a position that is collinear with the second moving part.
  • This implementation method can also achieve the purpose of the aforementioned implementation method.
  • the force exerted by the force applying part causes the third moving part to have a tendency to rotate in the second direction. Since the first movement is at a position reached by passing through a collinear position with the second moving part, the above-mentioned movement tendency of the third moving part will cause the first moving part to have a movement tendency to continue to rotate in the first direction. In this way, the first moving part will not return to the first position along the second direction from the second position under the action of the force-applying part, so that the tool assembly can be kept in a closed state.
  • the first end of the second moving part 15 may be provided with a rotation stop 151 .
  • the anti-rotation part 151 abuts the first moving part 14 , thereby restricting the first moving part 14 from continuing to rotate in the first direction after reaching the second position. In this way, the first movement 14 can be stopped in the second position.
  • the second end of the first moving member may also be provided with a rotation stop portion.
  • the anti-rotation part resists the second movement piece, thereby stopping the first movement at the second position.
  • the second end of the second moving part may also be provided with a rotation stop portion.
  • the anti-rotation part abuts against the third moving part, thereby stopping the first movement at the second position.
  • the first end of the third moving element may also be provided with a rotation stop portion.
  • the anti-rotation part abuts against the second moving part, thereby stopping the first movement at the second position.
  • the first moving part can be stopped at the second position in other ways.
  • a member may be used to block the first moving part to stop the first moving part in the second position.
  • the platform assembly 12 may also include an operating member 19 .
  • the operating member 19 is used to drive the first moving member 14 to rotate in the second direction to leave the second position under operation, that is, to drive the first moving member 14 from the position collinear with the second moving member 16 in FIG. 4A along the second position.
  • the direction is rotated to the position in FIG. 4B where it is no longer collinear with the second moving part 15 .
  • the operating member 19 may be implemented as a cam 19 .
  • the cam 19 rotates, thereby pushing the first moving part 14 so that the first moving part 14 rotates along the second direction to leave the second position.
  • the operating part can cause the first moving part to rotate in the second direction under operation. to the position where it is collinear with the second moving part, thereby causing the first moving part to leave the second position.
  • One advantage of this implementation is that when the rotation angle of the third moving part from the third position to the fourth position is constant, the displacement component of the part of the third moving part that is in contact with the linkage part in the axial direction relatively bigger. In this way, the third moving part only needs to rotate a small angle to cause the linkage part to travel a long distance proximally along the axial direction. This implementation method is beneficial to the miniaturization of the stapler.
  • the platform assembly 12 may also include a trigger 20 .
  • the trigger 20 is pivotably supported about a third axis a3.
  • the first moving part 14 can be driven by the trigger 20 .
  • Platform assembly 12 may include housing 21 , which may define handle 211 .
  • housing 21 When the trigger 20 is operated, the trigger 20 moves toward the handle 211 from the initial position to the end position.
  • the trigger 21 is released, the trigger 21 moves away from the handle 211 and returns to the initial position from the end position.
  • the trigger 20 can drive the first moving part 14 so that the first moving part 14 moves from the first position in FIG. 2A to the second position in FIG. 2B .
  • the first moving part can be caused to move from the first position to the second position, thereby causing the tool assembly to switch from open to closed.
  • the platform assembly 12 may also include a force applying member 22 .
  • the force applying member 22 applies a force to the trigger 20 to return the trigger 20 to the initial position from the end position. In this way, when the trigger 20 is released, the trigger 20 can return to the initial position under the action of the force applying member 22 .
  • the force applying member 22 is a tension spring, and a boss 212 is provided on the inside of the housing 21 . One end of the force applying member 22 is attached to the boss 212 , and the other end is attached to the trigger 20 . It can be understood that the implementation of the force applying member 22 is not limited to this.
  • the force applying member 22 may also be a torsion spring.
  • the trigger When operated, the trigger may directly drive the first moving part, or may indirectly drive the first moving part via other intermediate components. This disclosure does not specifically limit this.
  • the closing mechanism may further include a driving member 23
  • the platform assembly 12 may further include a guide rail 213 .
  • the guide rail 213 may be formed on the inner surface of the housing 21 .
  • the first end of the driving member 23 is pivotally connected to the trigger 20 , and the second end is guided by the guide rail 213 .
  • the second end of the driving member 23 abuts the first moving member 14 and pushes the first moving member 14 , causing the first moving member 14 to move from the first position to the second position.
  • the trigger 20 when the trigger 20 is released, the trigger 20 returns to the initial position from the end position along the second direction around the third axis a3 under the action of the force-applying member 22 , and the driving member 23 moves along the trigger 20 . It is driven to separate from the first moving part 14, and the first moving part 14 is maintained in the fourth position.
  • the first moving part can be driven to move from the first position to the second position by operating the trigger.
  • the first moving part will not return to the first position as the trigger returns to the initial position, thus achieving decoupling of the trigger and the first moving part. This provides the basis for maintaining the tool assembly in a closed position after the trigger is released.
  • the second end of the driving member may be pivotally connected to the first moving member, and the first end of the driving member may be guided by the guide rail.
  • the trigger moves from the initial position to the end position around the third axis in the first direction, the trigger abuts the first end of the driving member and pushes the first end of the driving member, so that the driving member drives the first moving member from the first position.
  • the trigger returns from the end position to the initial position along the second direction around the third axis under the action of the force-applying member, and the driving member is separated from the trigger. In this way, the above object can also be achieved.
  • the guide rail 213 may be an arc-shaped guide rail.
  • the second end of the driving member 23 is located at the first end of the guide rail 213 .
  • the second end of the driving member 23 is located at the second end of the guide rail 213 .
  • the first moving part 14 rotates along the first direction around the first axis a1 to a position that is collinear with the second moving part 15
  • the second end of the driving part 23 is controlled by the second end of the guide rail 213 and is in contact with the first moving part 14 .
  • the moving parts 14 are separated.
  • the second end of the driving part may always resist the first moving part.
  • the first moving part 14 may be pivotably supported by the housing 21 about the first axis a1.
  • the housing 21 may include a pair of detachably connected shells 214 , 215 , and each of the shells 214 , 215 may also be provided with a hole 216 on the inside thereof.
  • a pair of bosses 141 may be provided on opposite sides of the first end of the first moving part 14 .
  • the pair of bosses 141 are pivotably inserted into the holes 216 of the shells 214 and 215 respectively, so that the first moving part 14 is supported by the shell 21 in a manner that can pivot about the first axis a1.
  • the first axis a1 may be defined by the boss 141 , or the first axis a1 may be the axis of the boss 141 .
  • the method of supporting the first moving part is not limited to the above.
  • the third moving member 16 may be pivotably supported by the housing 21 about the second axis a2.
  • the inner side of each of the shells 214 and 215 may also be provided with a hole 217
  • the opposite sides of the second end of the third moving part 16 may be provided with a pair of bosses 161 .
  • a pair of bosses 161 are pivotably inserted into the holes 217 of the shells 214 and 215 respectively, so that the second end of the third moving part 16 is supported by the shell 21 in a manner that is pivotable about the second axis a2.
  • the second axis a2 may be defined by the boss 161 , or the second axis a2 may be the axis of the boss 161 .
  • the method of supporting the third moving part is not limited to the above.
  • the first moving member 14 may further include a pair of arm portions 142 provided at its second end, and each arm portion 142 is provided with a through hole 143 .
  • the first end of the second moving part 15 is provided with a through hole 152 .
  • the closing mechanism may also include a pin 24 .
  • the first end of the second moving part 15 extends between the pair of arms 142 of the first moving part 14 , and the pin 24 passes through a pair of through holes 143 and 152 , thereby connecting the second end of the first moving part 14 The end is pivotally connected to the first end of the second moving part 15 .
  • the second end of the first moving part may be provided with a rotating shaft part
  • the first end of the second moving part may be provided with a hole adapted to the rotating shaft part
  • the rotating shaft part may be inserted into the rotating shaft part. hole, thereby achieving pivotal connection between the first moving part and the second moving part.
  • the third moving member 16 may further include a pair of arm portions 162 provided at its first end, and each arm portion 162 is provided with a through hole 163 .
  • the second end of the second moving part 15 is provided with a through hole 153 .
  • the closing mechanism may also include a pin 25 .
  • the second end of the second moving part 15 extends between a pair of arms 162 of the third moving part 16 , and the pin 25 passes through a pair of through holes 163 and 153 , thereby connecting the second end of the second moving part 15 The end is pivotally connected to the first end of the third moving member 16 .
  • the second end of the second moving part may be provided with a rotating shaft part
  • the first end of the third moving part may be provided with a hole that matches the rotating shaft part, and the rotating shaft part may be inserted into In this hole, the second moving part and the third moving part can be pivotally connected.
  • the trigger 20 may be pivotably supported on the housing 21 about the third axis a3.
  • the inside of each of the housings 214 , 215 is provided with a hole 218 , and opposite sides of the trigger 20 are provided with a pair of bosses 201 .
  • the trigger 20 is at least partially placed between a pair of shells 214, 215, and a pair of bosses 201 are pivotably inserted into the holes 218 of the shells 214, 215 respectively, thereby enabling the trigger 20 to be supported in a manner capable of pivoting around the third axis a3. on the housing 21.
  • the third axis a3 may be defined by the boss 201 , or in other words, the third axis a3 may be the axis of the boss 201 .
  • the method of supporting the trigger is not limited to the above.
  • the trigger 20 may also be provided with a groove 202 , and a pair of holes 203 are respectively provided in two side walls of the groove 202 .
  • the first end of the driving member 23 is provided with a through hole 231 .
  • the closing mechanism may also include a pin 26 .
  • the first end of the driving member 23 is inserted into the slot 202 , and the pin 26 passes through the through hole 231 and the pair of holes 203 , thereby pivotally connecting the first end of the driving member 23 to the trigger 20 .
  • the second end of the driving member 23 may be provided with a boss 232 , and the boss 232 may be inserted into the guide rail 213 , so that the second end of the driving member 23 is guided by the guide rail 213 .
  • the closing mechanism may also control member 27.
  • the control member 27 may be an elongated pull tab.
  • Control 27 extends between linkage 17 and tool assembly 11 .
  • the proximal end of the control member 27 cooperates with the linkage member 17, and the distal end of the control member 27 cooperates with the tool assembly 11, so that as the linkage member 17 moves proximally along the axial direction, the control member 27 moves proximally along the axial direction, thereby causing The tool assembly 11 switches from open to closed.
  • the proximal end of the control member 27 may be provided with a hole 271
  • the tubular elongated body 13 may be provided with a pair of grooves 131 penetrating its interior and exterior.
  • the closure mechanism may also include a ring 28 and a pin 29 provided with a pair of holes 281 .
  • the control member 27 is inserted into the elongated body 13
  • the ring 28 is sleeved on the elongated body 13
  • the pin is inserted into the hole 271 , a pair of grooves 131 and a pair of holes 281 .
  • the linkage piece 17 is sleeved on the ring 28 , and a shoulder is provided on the inner circumference of the linkage piece 17 , and the shoulder is located on the far side of the ring 28 and abuts against the ring 28 .
  • the linkage 17 moves axially proximally, the linkage 17 pushes the ring 24 so that the control member 27 moves axially proximally, causing the tool assembly 11 to switch from open to closed.
  • control member can follow the linkage member to move axially distally, and the control member can rotate about the axis of the elongated body, which provides a basis for realizing the rotation of the tool assembly about the axis of the elongated body.
  • the platform assembly 12 may also include a cap 30 and a compression spring 31 .
  • cap 30 is provided with a through hole 301, and the pin 29 also passes through the through hole 301 of the cap 30.
  • the compression spring 31 is located on the proximal side of the cap 30 .
  • control part can also cooperate with the linkage part in other ways.
  • the proximal end of the control member may be directly fixedly connected to the linkage member.
  • the linkage piece can drive the control member to move proximally along the axial direction, thereby causing the closing mechanism to switch from open to closed; as the linkage piece moves from the end position to the initial position, the linkage piece The component can drive the control component to move distally along the axial direction, thereby causing the closing mechanism to switch from closing to opening.
  • control part there are many ways for the control part to cooperate with the tool assembly, and this disclosure does not specifically limit this.
  • clamps 111 and 112 are pivotally connected by pins 113 .
  • the clamp 111 is provided with a guide groove 114, which is proximal and gradually extends toward the side where the clamp 112 is located.
  • Tool assembly 11 also includes pin 115 attached to the distal end of control 27 .
  • the pin 115 As the control member 27 moves axially in the proximal direction, the pin 115 also moves axially in the proximal direction. During this process, the pin 115 cooperates with the guide groove 114 to drive the clamp 111 to rotate around the pin axis 113 from the position in FIG. 6A to the position in FIG. 6B , thereby causing the tool assembly 11 to gradually close from opening.
  • the pin 115 As the control member 27 moves axially in the distal direction, the pin 115 also moves axially in the distal direction. During this process, the pin 115 cooperates with the guide groove 114, and the clamp 111 is driven to rotate around the pin axis 113 from the position in FIG. 6B to the position in FIG. 6A, thereby causing the tool assembly 11 to gradually open from closing.
  • the stapler provided in Embodiment 2 of the present disclosure is similar in structure to the stapler provided in Embodiment 1.
  • the description will mainly focus on the differences between Embodiment 2 and Embodiment 1.
  • Elements (members or parts) that are the same or correspond to those in Embodiment 2 as in Embodiment 1 are assigned the same or corresponding reference numerals, and description thereof will be omitted.
  • the stapler provided in Embodiment 2 of the present disclosure further includes an actuator 32 , the actuator 32 is slidably configured in the axial direction, and the actuator 32 can move distally (ie, axially) in the axial direction. 7A to 7C) moves to cause the tool assembly 11 to fire.
  • the linkage 32 is slidably sleeved on the elongated body 13 so as to be able to slide in the axial direction.
  • the platform assembly may include a push piece (or control rod), one end of the push piece cooperates with the actuator, and the other end cooperates with the cutter of the tool assembly, so that the actuator moves distally along the axial direction.
  • the push piece moves distally and drives the cutter to move distally; as the cutter moves distally, the cutter cuts the tissue and pushes the firing block of the tool assembly to move distally, and the firing block can seal the anastomosis during the movement.
  • the staples are pushed out of the staple cartridge to achieve tissue suturing.
  • the push piece can directly push the firing block, so that the firing block moves distally to push the staples out of the staple cartridge.
  • the first moving part 14a includes an extension part 144a. When the first moving member 14a is in the second position, at least part of the extension 144a is located in the path of the axially proximal movement of the actuating member 32.
  • the actuating member 32 may be pulled proximally along the axial direction.
  • the actuating member 32 moves proximally along the axial direction, the actuating member 32 abuts against the extending portion 144 a and pushes the extending portion 144 a , so that the first moving member 14 a rotates to be in contact with the second moving member 32 .
  • the moving parts 15 are no longer in a collinear position, and therefore the first moving part 14a can continue to rotate to the third position under the action of the force applying part 18 .
  • this implementation it is only necessary to pull the actuating member proximally along the axial direction to cause the first moving member to return from the second position to the first position, thereby switching the tool assembly from closed to open.
  • the actuating member can not only play a role in firing the tool assembly, but also can be used to reset the first movement. It can be seen that this implementation method can reduce the number of components, thereby simplifying the structure of the stapler.
  • tissue suturing method can be used to suture human or animal tissue.
  • this method can be used to suture the digestive tract of humans or animals.
  • the method includes: providing the stapler provided in the above embodiments of the present disclosure; and using the stapler to suture the tissue.
  • first or second etc. may be used in this disclosure to describe various elements (such as a first moving part and a second moving part), these elements are not limited by these terms. Terms are simply used to distinguish one element from another.

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Abstract

L'invention concerne un mécanisme de fermeture approprié pour une agrafeuse (10) et une agrafeuse (10) comprenant ledit mécanisme. Le mécanisme de fermeture comprend : un premier élément mobile (14), dont une première extrémité est supportée avec faculté de pivotement autour d'un premier axe (a1) ; un deuxième élément mobile (15), dont une première extrémité est reliée avec faculté de pivotement à une seconde extrémité du premier élément mobile (14) ; un troisième élément mobile (16), dont une première extrémité est reliée avec faculté de pivotement à une seconde extrémité du deuxième élément mobile (15), et dont une seconde extrémité est supportée avec faculté de pivotement autour d'un second axe (a2) ; et un élément de liaison (17), qui peut coulisser dans le sens axial et venir en butée contre le troisième élément mobile (16), celui-ci suivant le premier élément mobile (14) en rotation autour du premier axe (a1) le long d'une première direction d'une première position à une seconde position ; le troisième élément mobile (16) tourne autour du second axe (a2) dans la première direction d'une troisième position à une quatrième position et pousse l'élément de liaison (17) pour qu'il se déplace vers un côté proximal dans le sens axial, amenant ainsi un ensemble outil (11) de l'agrafeuse (10) à passer d'une position ouverte à une position fermée. La présente application est relativement économe en travail, ce qui permet d'améliorer l'expérience d'utilisation de l'agrafeuse (10).
PCT/CN2023/107782 2022-07-18 2023-07-17 Mécanisme de fermeture et agrafeuse WO2024017217A1 (fr)

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CN202210840840.3 2022-07-18
CN202210840840.3A CN117442274A (zh) 2022-07-18 2022-07-18 闭合机构及吻合器
CN202221849378.5U CN217827969U (zh) 2022-07-18 2022-07-18 闭合机构及吻合器
CN202221849378.5 2022-07-18

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WO2024017217A1 true WO2024017217A1 (fr) 2024-01-25

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101273911A (zh) * 2007-03-28 2008-10-01 伊西康内外科公司 具有可手动回缩的击发构件的外科缝合和切割器械
CN103237507A (zh) * 2010-10-01 2013-08-07 伊西康内外科公司 具有功率控制电路的外科器械
US20160100902A1 (en) * 2014-10-10 2016-04-14 Ethicon Endo-Surgery, Inc. Surgical Device with Overload Mechanism
US20170027571A1 (en) * 2015-07-30 2017-02-02 Ethicon Endo-Surgery, Llc Surgical instrument comprising systems for assuring the proper sequential operation of the surgical instrument
CN108472039A (zh) * 2015-12-31 2018-08-31 伊西康有限责任公司 具有锁定可平移销的外科缝合器
CN113766884A (zh) * 2019-04-26 2021-12-07 西拉格国际有限公司 用于直角外科缝合器的基于仓的闭锁机构
CN217827969U (zh) * 2022-07-18 2022-11-18 天臣国际医疗科技股份有限公司 闭合机构及吻合器
CN217827970U (zh) * 2022-07-18 2022-11-18 天臣国际医疗科技股份有限公司 平台组件及吻合器
CN217907878U (zh) * 2022-07-18 2022-11-29 天臣国际医疗科技股份有限公司 平台组件及吻合器
CN217960197U (zh) * 2022-07-18 2022-12-06 天臣国际医疗科技股份有限公司 击发机构及外科吻合器
CN218356278U (zh) * 2022-07-18 2023-01-24 天臣国际医疗科技股份有限公司 平台组件及吻合器
CN218528805U (zh) * 2022-07-18 2023-02-28 天臣国际医疗科技股份有限公司 平台组件及吻合器

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101273911A (zh) * 2007-03-28 2008-10-01 伊西康内外科公司 具有可手动回缩的击发构件的外科缝合和切割器械
CN103237507A (zh) * 2010-10-01 2013-08-07 伊西康内外科公司 具有功率控制电路的外科器械
US20160100902A1 (en) * 2014-10-10 2016-04-14 Ethicon Endo-Surgery, Inc. Surgical Device with Overload Mechanism
US20170027571A1 (en) * 2015-07-30 2017-02-02 Ethicon Endo-Surgery, Llc Surgical instrument comprising systems for assuring the proper sequential operation of the surgical instrument
CN108472039A (zh) * 2015-12-31 2018-08-31 伊西康有限责任公司 具有锁定可平移销的外科缝合器
CN113766884A (zh) * 2019-04-26 2021-12-07 西拉格国际有限公司 用于直角外科缝合器的基于仓的闭锁机构
CN217827969U (zh) * 2022-07-18 2022-11-18 天臣国际医疗科技股份有限公司 闭合机构及吻合器
CN217827970U (zh) * 2022-07-18 2022-11-18 天臣国际医疗科技股份有限公司 平台组件及吻合器
CN217907878U (zh) * 2022-07-18 2022-11-29 天臣国际医疗科技股份有限公司 平台组件及吻合器
CN217960197U (zh) * 2022-07-18 2022-12-06 天臣国际医疗科技股份有限公司 击发机构及外科吻合器
CN218356278U (zh) * 2022-07-18 2023-01-24 天臣国际医疗科技股份有限公司 平台组件及吻合器
CN218528805U (zh) * 2022-07-18 2023-02-28 天臣国际医疗科技股份有限公司 平台组件及吻合器

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